2015拉萨市
高考英语阅读理解、书面表达自练（3）答案（三月）
阅读理解。
《2014•
山东省泰安市高三第一轮复习质量检测》
the world bank estimates there are about 650 million mobile phone users in african countries south of the sahara desert.that is greater than the number of users in the united states and european union.
